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{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:rust-lang:rust:*:*:*:*:*:*:*:*", "matchCriteriaId": "921FB9CC-684E-4BBA-AD38-980D986D254B", "versionEndExcluding": "1.50.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the standard library in Rust before 1.50.0, read_to_end() does not validate the return value from Read in an unsafe context. This bug could lead to a buffer overflow."}, {"lang": "es", "value": "En la biblioteca est\u00e1ndar de Rust versiones anteriores a 1.50.0, la funci\u00f3n read_to_end() no comprueba el valor de retorno de Read en un contexto no seguro. Este bug podr\u00eda conllevar a un desbordamiento de b\u00fafer"}], "id": "CVE-2021-28875", "lastModified": "2026-06-17T03:47:00.340", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 5.0, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-04-11T20:15:12.627", "references": [{"source": "cve@mitre.org", "tags": ["Exploit", "Issue Tracking", "Patch", "Third Party Advisory"], "url": "https://github.com/rust-lang/rust/issues/80894"}, {"source": "cve@mitre.org", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/rust-lang/rust/pull/80895"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "https://security.gentoo.org/glsa/202210-09"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Issue Tracking", "Patch", "Third Party Advisory"], "url": "https://github.com/rust-lang/rust/issues/80894"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/rust-lang/rust/pull/80895"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://security.gentoo.org/glsa/202210-09"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-252"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"affected_release": [{"advisory": "RHSA-2021:3042", "cpe": "cpe:/a:redhat:devtools:2021", "package": "rust-toolset-1.52-0:1.52.1-1.el7_9", "product_name": "Red Hat Developer Tools", "release_date": "2021-08-10T00:00:00Z"}, {"advisory": "RHSA-2021:3042", "cpe": "cpe:/a:redhat:devtools:2021", "package": "rust-toolset-1.52-rust-0:1.52.1-2.el7_9", "product_name": "Red Hat Developer Tools", "release_date": "2021-08-10T00:00:00Z"}, {"advisory": "RHSA-2021:3063", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "rust-toolset:rhel8-8040020210603202531.2daa1a95", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2021-08-10T00:00:00Z"}], "bugzilla": {"description": "rust: heap-based buffer overflow in read_to_end() because it does not validate the return value from Read in an unsafe context", "id": "1949194", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1949194"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "status": "verified"}, "cwe": "CWE-119", "details": ["In the standard library in Rust before 1.50.0, read_to_end() does not validate the return value from Read in an unsafe context. This bug could lead to a buffer overflow."], "name": "CVE-2021-28875", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "rust", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2021-01-10T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2021-28875\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-28875"], "threat_severity": "Moderate"}

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